Cologne ›
Weather by month

Cologne Weather by Month

Average temperatures, rainfall and humidity for Cologne, Germany, month by month, built from OpenWeather’s historical records. Use it to see what a typical Cologne month looks like before you travel — then check the live Cologne forecast for the days ahead.

Warmest month

July

25°C average high

Coolest month

January

2°C average low

Wettest month

October

77 mm of rain

Driest month

February

54 mm of rain

Average temperature and rainfall in Cologne by month

Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.

Month	Avg high	Avg low	Record low / high	Rainfall	Humidity	Wind
January	6°C	2°C	-10°C / 16°C	72 mm	85%	14 km/h
February	8°C	2°C	-12°C / 21°C	54 mm	78%	14 km/h
March	12°C	3°C	-15°C / 25°C	66 mm	70%	13 km/h
April	16°C	6°C	-5°C / 28°C	55 mm	66%	12 km/h
May	19°C	9°C	0°C / 33°C	69 mm	69%	11 km/h
June	24°C	14°C	5°C / 39°C	66 mm	69%	11 km/h
July	25°C	15°C	6°C / 40°C	61 mm	68%	10 km/h
August	25°C	15°C	6°C / 38°C	66 mm	70%	10 km/h
September	21°C	12°C	2°C / 33°C	69 mm	76%	10 km/h
October	16°C	9°C	-4°C / 27°C	77 mm	82%	12 km/h
November	10°C	5°C	-5°C / 21°C	67 mm	84%	12 km/h
December	8°C	3°C	-13°C / 18°C	69 mm	85%	13 km/h

Best time to visit Cologne

The most comfortable time to visit Cologne is generally June to August, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rainfall is spread evenly across the months, totalling about 792 mm a year.

Travellers who prefer heat should aim for July, when highs average 25°C. October is the month to avoid if rain would spoil your plans — it averages 77 mm, roughly 1× the rainfall of the driest month (February).

Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Cologne forecast for what is happening now.